BB101 2018 contains 162 pages of regulations and guidance and gives a more detailed holistic approach to the internal environment in schools. As this document is the benchmark for schools it’s important that it is well understood by those actively working in the education design sector. BB101 should be used in tandem with BB93 Acoustic design of schools-performance standards (2015), which outlines regulations relating to acoustic requirements. While not being too prescriptive, to allow designers to use innovative energy saving solutions, it does offer a better framework to steer sensible choices for building services equipment that should result in building better schools.
In any event, the NH3/CO2 system uses less energy than its predecessor at the University of Alaska, said Sutherland, though he acknowledged it was an old system. Energy is saved in several ways: the NH3/CO2 system employs an adiabatic condenser rather than an air-cooled condenser; and it reclaims more heat than the older model.
The installations are indeed expensive, notably Terraosave, where a single contract can be worth a million euros. But the startup claims it can reduce energy bills by 30 to 80 percent, which generally pays for its cost in less than three years.
One not-so-obvious advantage of HVLS fans is that they deter birds from flying into and nesting in hangars, even when they are open to the outdoor elements.
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Covert said WIPP officials are also adding exhaust fans to the mine in an attempt to increase flow while the SSCVS is built.
In terms of installed cost, a transcritical CO2 direct ice rink system can run higher than systems using synthetic refrigerants or ammonia, mostly due to the stainless-steel piping required under the rink, said Henderson. The installed price of an ammonia system, he added, is impacted by safety requirements, while its operational cost is boosted by the use of an evaporative condenser.
Madison Township trustees wrote a letter of support to commissioners earlier this year, urging the county panel to approve the $5 increase.
False: Carbon monoxide alarms are needed to sell a home in Minnesota. Carbon monoxide alarms are required within 10′ of sleeping rooms, but this has nothing to do with a real estate transaction. You don’t install carbon monoxide alarms because it’s the law, you do it because it’s a $15 life safety device. See R315 for the exact rules on CO alarms.
During the cooling cycle, condensation forms within the unit due to the removal of latent heat from the air. Sensible capacity is the capacity required to lower the temperature and latent capacity is the capacity to remove the moisture from the air.
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